Spinal tumor classification [Neurosurgery Wiki]

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====== Spinal tumor classification ======

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[[Spinal tumor]]s depending on their location, can be [[primary bone tumors of the spine]]s or [[intraspinal tumor]]s.
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[[Primary spinal tumor]]

[[Secondary spinal tumor]]

===== Intradural spinal tumor =====
[[Intradural spinal tumor]]s.

===== Cervical spinal tumor =====


[[Cervical spinal tumor]]

===== Thoracic spinal tumor =====


[[Thoracic spinal tumor]]

===== Lumbar spinal tumor =====

[[Lumbar spinal tumor]].

==== Compartmental locations of spinal tumors ====

May be classified into 3 groups based on the compartment involved. Although [[spinal metastases]] may be
found in each area, they are most commonly extradural. Frequencies quoted below are from a general
hospital, extradural lesions are less common in neurosurgical clinics because many of these
tumors are managed by oncologists without requiring neurosurgical involvement.

1. extradural (ED) (55%): arise outside cord in vertebral bodies or epidural tissues (see [[Spinal epidural tumor]])

2. [[intradural extramedullary]] (ID-EM) (40%): arise in leptomeninges or roots. Primarily [[spinal meningioma]]s
and neurofibromas (together = 55% of ID-EM tumors)

3. intramedullary [[spinal cord tumor]]s (IMSCT), 5%: arise in SC substance. Invade and destroy
tracts and gray matter

▶ Spinal lymphoma. Lymphoma may occur in any of or all 3 compartments.

1. epidural

a) metastatic or secondary lymphoma: the most common form of spinal lymphoma. Spinal
involvement occurs in 0.1–10% of patients with non-Hodgkin’s lymphoma

b) primary spinal epidural non-Hodgkin’s lymphoma: rare. Completely epidural with no bony
involvement. The existence of this entity is controversial, and some investigators feel that it
represents extension of undetected retroperitoneal or vertebral body lymphoma. May have a
better prognosis than secondary lymphoma

2. intramedullary

a) secondary 

b) primary: very rare

===== Histology =====

[[Spinal meningioma]]

[[Spinal Metastases]].

[[Spinal Schwannoma]].